Let us assume total capacity of the container = x pounds.
Container contains 1/6th coffee of total x pounds, that is x/6 pounds.
We also given that 1/6th part is equal to 2/3 of a pound.
So, we could setup an equation now.
x/6 pounds equals 2/3 of a pound.

Dividing both sides by 1/6, we get
÷
=
÷
.
Therefore, x =
÷

Division expression that represents the capacity of the container = 2/3 ÷ 1/6.